Sardar Singh was today named captain of the 18-man Indian squad for the Six Nations Invitational Hockey Tournament to be held in Valencia from Monday next week. He was rested from India's silver medal winning Champions Trophy campaign. Drag-flicker Rupinder Pal Singh also made a return with Sardar, and so did Birender Lakra. Goalkeeper P R Sreejesh had captained the Champions Trophy side in London where India won their maiden silver in the competition history.The other teams in the six nations tournament are Argentina, Germany, New Zealand, Ireland and hosts Spain. India take on Germany in the opener on Monday next week.